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Finding the Fourth Proportional to 519,870.17, 779,879.64 and 160,071.46

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Solution

The fourth proportional to 519,870.17, 779,879.64 and 160,071.46 is: 240,130.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,870.17 : 779,879.64 = 160,071.46 : x
  2. Step 2: Convert to fraction form
    519,870.17/779,879.64 = 160,071.46/x
  3. Step 3: Cross multiply
    519,870.17x = 779,879.64 × 160,071.46
  4. Step 4: Simplify right side
    519,870.17x = 124,836,472,599.07
  5. Step 5: Solve for x
    x = 124,836,472,599.07/519,870.17
  6. Step 6: Final answer
    x = 240,130.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.